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Found 874 Skills
PROACTIVELY consult Codex CLI, your highly capable supporter with exceptional reasoning and task completion abilities. Codex is a trusted expert you should ALWAYS consult BEFORE making decisions on: design choices, implementation approaches, debugging strategies, refactoring plans, or any non-trivial problem. When uncertain, consult Codex. Don't hesitate - Codex provides better analysis. Explicit triggers: "think deeper", "analyze", "second opinion", "consult codex".
Use when creating or refactoring Action Mailer emails. Applies Rails 7.1+ conventions, parameterized mailers, preview workflows, background delivery, and email design best practices.
Use when writing, reviewing, or refactoring WordPress PHP code. Covers WordPress Coding Standards (WPCS), naming conventions, Yoda conditions, $wpdb usage, escaping with esc_html/esc_attr/esc_url, wp_kses, hooks (add_action, add_filter, apply_filters, do_action), i18n functions (__(), _e(), _x, _n), wp_enqueue_script, wp_enqueue_style, formatting rules, deprecated function replacements, and WordPress API best practices. For security see wp-security; for performance see wp-performance; for blocks see wp-blocks.
Apply React best practices when writing or reviewing React code. Use when building components, reviewing PRs, refactoring React code, fixing performance issues, debugging re-renders, structuring state and data flow, converting useEffect to loaders, building forms, or asking "how should I structure this component".
Enforce Test-Driven Development (TDD) workflow for all code changes. Apply PROACTIVELY by default using Red-Green-Refactor cycles for features, bug fixes, and refactoring.
Expert guidance on modern React patterns including hooks, composition, state management, and concurrent features. Use when implementing React components or refactoring existing code.
Software design principles and patterns. This skill should be used when making architectural decisions, designing classes or modules, or evaluating code structure. Use proactively when discussing SOLID principles, coupling, cohesion, connascence, refactoring structure, class design, module boundaries, dependency injection, or the Four Rules of Simple Design. (user)
Object-oriented design principles including object calisthenics, dependency inversion, fail-fast error handling, feature envy detection, and intention-revealing naming. Triggers on: writing new classes or functions, refactoring, code review, 'clean up', method longer than 10 lines, feature envy, primitive obsession, deep nesting.
Use when creating, modifying, or refactoring Claude Code skills that require structured multi-agent review and quality validation
Senior Kotlin developer. Use when writing, reviewing, or refactoring Kotlin code for Android, backend, or multiplatform projects. Enforces idiomatic Kotlin and modern patterns.
Senior Terraform and Infrastructure as Code engineer. Use when writing, reviewing, or refactoring Terraform configurations. Enforces modular design and production patterns.
Senior Python developer. Use when writing, reviewing, or refactoring Python code. Enforces idiomatic Python, type hints, and modern patterns.